body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.contenBox{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    width: 900px;
    margin-left: 400px;
    height: 450px;
    border: solid 1px #000;
}

.contenBox div p  {
  font-size: 24px;
  /* color: red; */
}

.contenBox div p span {
  font-size: 20px;
  color: red;
}